Home

Sioux Falls, SD Weather


Sioux Falls, SD climate is warm during summer when temperatures tend to be in the 70's and extremely cold during winter when temperatures tend to be in the 10's.

The warmest month of the year is July with an average maximum temperature of 85.60 degrees Fahrenheit, while the coldest month of the year is January with an average minimum temperature of 2.90 degrees Fahrenheit.

Temperature variations between night and day tend to be moderate during summer with a difference that can reach 25 degrees Fahrenheit, and moderate during winter with an average difference of 22 degrees Fahrenheit.

The annual average precipitation at Sioux Falls is 24.69 Inches. Rainfall in is fairly evenly distributed throughout the year. The wettest month of the year is June with an average rainfall of 3.49 Inches.

Weather Data

Current Conditions

(Updated: 9:56 PM CST FRI NOV 20 2009)

Fair Fair, 26°F Humidity: 92% Dewpoint: 24°F
Wind Speed: CALM Heat Index: 26°F
Barometer: 30.04 in. Wind Chill: 26°F

Weather Forecast

(Generated: 3:40 PM CST FRI NOV 20 2009)
  Tonight: Clear. Lows in the upper 20s. Southeast winds 5 to 10 mph.
Lo: 29°F
Hi: 55°F Saturday: Sunny and breezy...Then a few late day clouds. Highs in the mid 50s. South winds increasing to 15 to 25 mph.
Lo: 39°F
Hi: 50°F Sunday: Mostly cloudy. A 20 percent chance of light rain in the morning. Highs around 50. Southwest winds around 5 mph becoming south in the afternoon.
Lo: 35°F
Hi: 45°F Monday: Cloudy with a 40 percent chance of rain. Highs in the mid 40s.
Lo: 35°F
Hi: 39°F Tuesday: Cloudy with a 50 percent chance of rain or snow. Highs in the upper 30s.
Lo: 29°F
Hi: 39°F Wednesday: Mostly cloudy. Highs in the upper 30s. Lows in the lower 20s.
Lo: 21°F
Hi: 39°F Thursday: Mostly cloudy. Highs in the upper 30s. Lows in the lower 20s.
Lo: 21°F

Moon, Sunrise and Sunset

Waxing Crescent Moon Moon Phase: Waxing Crescent Moon Civil Twilight:
6:54 AM CST
Sunrise:
7:26 AM CST
Sunset:
4:57 PM CST
Civil Twilight:
5:29 PM CST

Normal Climate

Normal Temperatures

(SIOUX FALLS AP Weather station, 3.25 miles from Sioux Falls)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Max °F 25.2 31.6 43.8 58.8 71.0 80.6 85.6 83.2 74.2 61.1 41.9 28.8 57.2
Mean °F 14.0 20.8 32.6 45.7 57.8 67.5 73.0 70.8 60.9 48.0 31.3 18.3 45.1
Min °F 2.9 10.1 21.3 32.5 44.6 54.5 60.3 58.4 47.6 34.8 20.7 7.8 33.0

Normal Precipitation

(SIOUX FALLS AP Weather station, 3.25 miles from Sioux Falls)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Inch 0.51 0.51 1.81 2.65 3.39 3.49 2.93 3.01 2.58 1.93 1.36 0.52 24.69